MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b20e67792a0edf233f319f7af96f189451bb8cd4df24c93fcf0e586a473f552d. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b20e67792a0edf233f319f7af96f189451bb8cd4df24c93fcf0e586a473f552d
SHA3-384 hash: b1fff51d703d11e796e3ae44f7549e427a6f6bfb30a4d22f5c6b2bcbf8c146c3912c3313246e7b06a5117e7f24f84c99
SHA1 hash: d570f797d036ddc5807ae9734560adc051630f50
MD5 hash: ede142a331e2127b161f8e531a586ded
humanhash: lion-washington-salami-whiskey
File name:Transfer update.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:488'448 bytes
First seen:2020-07-03 06:12:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:HkLoenRmMEcukeAxmxwUXEOG/SSYBQqza+D/3uJrJEH8LX:GZEcuDA+1XZacBbZKJreH8LX
Threatray 4'908 similar samples on MalwareBazaar
TLSH E8A428267D82C021D434867A90BD598077356DD93BF2CE0E7BC973193EB269B3E1261E
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: mgabilisim.com
Sending IP: 185.78.85.242
From: Jacklan <jacklan@sbsbio.com>
Subject: RE: Invoice
Attachment: Transfer update.CAB (contains "Transfer update.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/18577/
Detection(s):
Win.Malware.Formbook-7399661-0
Create hunting rule

Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b20e67792a0edf233f319f7af96f189451bb8cd4df24c93fcf0e586a473f552d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-03 06:14:06 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wihgo6jkb3psgpzrt55ps3yysri3xdgu34smsp6pbzmgurz7kuwq._file
Verdict:
malicious
Similar samples:
00983a8176276beea115d21fef7919c49b29b96d78dbc2151cc04cc7d8c95b35
Formbook
0d271903774ae9467d80cad6fcaec4d2ea4653b8eb4c28e0a1c7dbe0849ccd01
Formbook
112b6fe2084ca3501c8a98a9cd90f60ce691a438864be736b049062379195818
Formbook
4fd6cfb4c08338e8b3a6ec64118aa6ad90350e865e90365b5b700aa41908b984
Formbook
515f7d3e80be5b43204e165789a22254722d90b39c3a130f91949d1a511ff082
Formbook
7d667845924245b2c6acee25a643afab5ad0a822614574c93cbf19ff0bb4f8c4
Formbook
a9089afb7795019bd9b1a2395b387a6c9957d499f10ff2929bf8d65c9913f453
Formbook
b3b093d992d26b0d21a61a778598abd5dd87649a89f724c2798f60f9dc19de1a
Formbook
c7949573443efdf9faf7bdd96422dd515bc3576d8fce3091776333047524d1a2
Formbook
df745e4434b953ab404e59ef73608a9f3148fa7d629a28b7401c295efdf618b6
Formbook
+ 4'898 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
persistence spyware evasion trojan stealer family:formbook
Link:
https://tria.ge/reports/200703-bbm8zyf9dx/
Behaviour
System policy modification
Suspicious use of FindShellTrayWindow
Modifies Internet Explorer settings
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of SendNotifyMessage
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Reads user/profile data of web browsers
Loads dropped DLL
Executes dropped EXE
Adds Run entry to policy start application
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

zip 47d2b633a1ff5b56e3597ee4bba6ade5cea16f3841752626155a9659d1e092ae

Formbook

Executable exe b20e67792a0edf233f319f7af96f189451bb8cd4df24c93fcf0e586a473f552d

(this sample)

  
Dropped by
MD5 7c31d24551f60910e6f78e1edbed9b4e
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 47d2b633a1ff5b56e3597ee4bba6ade5cea16f3841752626155a9659d1e092ae
Cape
Cape
https://www.capesandbox.com/analysis/18577/

Comments